EP 2115865 A4 20130508 - FOREIGN SUBSTANCE REMOVING DEVICE AND FOREIGN SUBSTANCE REMOVING METHOD
Title (en)
FOREIGN SUBSTANCE REMOVING DEVICE AND FOREIGN SUBSTANCE REMOVING METHOD
Title (de)
EINRICHTUNG UND VERFAHREN ZUR ENTFERNUNG VON FREMDSUBSTANZEN
Title (fr)
DISPOSITIF DE RETRAIT DE SUBSTANCE ÉTRANGÈRE ET PROCÉDÉ DE RETRAIT DE SUBSTANCE ÉTRANGÈRE
Publication
Application
Priority
- JP 2008051977 W 20080130
- JP 2007024178 A 20070202
- JP 2007314756 A 20071205
Abstract (en)
[origin: WO2008093884A1] There is provided a foreign substance removing device which is capable of moving a foreign substance in a desired direction at a high removing efficiency. The foreign substance removing device removes a foreign substance on an object. A vibrator has first and second piezoelectric elements provided on the object. Power supplies applies alternating voltages to the respective first and second piezoelectric elements. A control circuit controls the alternating voltages applied by the power supplies. The control circuit changes the frequency of the alternating voltage and at the same time makes respective phases of the alternating voltages applied to the first and second piezoelectric elements different from each other, so as to concurrently generate a first standing wave and a second standing wave different in order.
IPC 8 full level
H02N 2/00 (2006.01); B06B 1/06 (2006.01); B08B 7/02 (2006.01); G03B 17/02 (2006.01); H10N 30/20 (2023.01); H10N 30/80 (2023.01)
CPC (source: EP KR US)
B08B 7/02 (2013.01 - EP KR US); G02B 27/0006 (2013.01 - EP KR US); G03B 17/02 (2013.01 - EP KR US); H04N 23/65 (2023.01 - EP KR US); H04N 23/811 (2023.01 - EP KR US); H10N 30/802 (2023.02 - EP KR US)
Citation (search report)
- [XAYI] US 5001404 A 19910319 - KATAOKA KENICHI [JP]
- [XAY] US 5130619 A 19920714 - IZUNO YUJI [JP]
- [YA] US 2004047625 A1 20040311 - ITO JUNICHI [JP], et al
- [A] US 2004012714 A1 20040122 - KAWAI SUMIO [JP]
- See also references of WO 2008093884A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2008093884 A1 20080807; CN 101542889 A 20090923; CN 102611350 A 20120725; CN 102611350 B 20141105; EP 2115865 A1 20091111; EP 2115865 A4 20130508; EP 2115865 B1 20161116; EP 3145072 A1 20170322; JP 2008207170 A 20080911; JP 4597185 B2 20101215; KR 101097828 B1 20111223; KR 20090094301 A 20090904; US 2009207493 A1 20090820; US 8256905 B2 20120904
DOCDB simple family (application)
JP 2008051977 W 20080130; CN 200880000156 A 20080130; CN 201210049425 A 20080130; EP 08710873 A 20080130; EP 16192348 A 20080130; JP 2007314756 A 20071205; KR 20097013117 A 20080130; US 44099608 A 20080130